La Radiologia medica
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La Radiologia medica · Feb 2010
Comparative StudyComputation of brain metabolite ratios in single-voxel proton MR spectroscopy: comparison between semiautomatic and automatic software.
Metabolite ratios are the measurements most commonly utilised for clinical applications of brain proton magnetic resonance spectroscopy ((1)H-MRS) [1]. We evaluated the agreement between the metabolite ratios calculated with semiautomatic and automatic software. ⋯ The difference between brain metabolite ratios calculated with the two software packages is not negligible and reflects spectral quality.
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La Radiologia medica · Feb 2010
Low-dose unenhanced CT protocols according to individual body size for evaluating suspected renal colic: cumulative radiation exposures.
The aim of this study was to assess the radiation dose of dose-reduced unenhanced abdominal multidetector computed tomography (MDCT) scan protocols for suspected renal colic in patients within normal weight range and overweight-obese patients and to record the cumulative dose of repeated examinations. ⋯ Although radiation dose is nearly double in overweight-obese patients undergoing MDCT, it remains lower than that delivered by a standard-dose protocol. Patients with flank pain, who are often young, are at increased risk for serial CT examinations. Use of a low-dose protocol is mandatory in both normal-weight and obese patients to minimise radiation exposure.